A PCT file extension is used for Graphic Image stored PICT formats by Macintosh, developed by Apple in 1984. It is used for the storage of images using Apple’s QuickDraw and contains image data in either PICT 1 format (8 colours) or PICT 2 (thousands of colours). PICT files are often perceived with the PICT extension, but they are typically seen with the PCT extension in Windows.
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